Pressing iron



Fatente d July 20, 1926.

t NITEu STATES 1,593,413 PATENT OFFICE.

HARRY A. KOENIG, OF PHILADELPHIA, PENNSYLVANIA.

' PRESSING IRON.

Application filed September The present invention relates to sad irons,

the type heated by gas and utilizing steam in conjunction with the heated body during the pressing operation.

Some of the objects of the present invention are to provide a pressing iron of the steam gas type having means for preventing water of condensation from being discharged upon the goods being pressed; to provide means whereby dry steam is discharged from a gas heated iron during the ironing operation; to provide means for collecting any water of condensation within the gas iron and preventing it from reaching the steam discharge outlets; to provide a gas heated pressing iron with a steam re-, ceiving chamber embodying a means for separating and discharging dry vapor from any saturated vapor or water of condensation; to provide means in a gas heated Pressing iron for causing water of condensation to be changed into steam and discharged as a dry vapor, and to provide other improvements as will hereinafter appear.

In the accompanying drawings, Fig. 1 represents a sectional elevation of a steam gas sad iron embodying one form of the present invention; Fig. 2 represents a section on' line 22 of Fig. 1; and Fig. 3 represents a section on line 3-3 of Fig. 1.

Referring to the drawings, one form of the present invention comprises a sad iron body 10, of general hollow construction, having a horizontally disposed and longitudinally arranged partition 11 therein, dividing the hollow body 10 into an upper combustion chamber 12 and a lower steam collecting chamber 13. In the present construction, the top 14 of the body 10 is apertured at a point adjacent the toe or front of the iron to receive a burner 15 ofthe usual blast type, supplied with a suitable air and gas mixture under pressure by way of pipe 16 from a controlled source of sup ly. The end wall 17 opposite to the toe oi the iron is provided with an outlet 18 communicatin with the combustion chamber 12, in or er to allow waste products of combustion to escape, and preferably this outlet 18 may 7 be opened or closed b the provision of a movable plate 20, for 'ghting purposes.

For the purpose of introducing steam to the COIlGCtlHi chamber 13 the body 10 is provided wit a rib 21, which extends anguarly downward from the top 14 at a point 5, 1923. Serial N0. 661,057.

adjacent the burner 15, and then runs substantially axially through the combustion chamber 12, and terminates at a point in relative close proximity to the end wall 17. The arrangement is such that the rib 21 is thus subjected throughout its length to the flame or heat blast from the burner 15, and is thereby maintained in a highly heated condition. This rib 21 is provided with a passage 22 extending throughout its length, the inlet end of which is in communication with a fitting 23 extending exterior ,of the body 10 and to which a pipe 24 is connected to transmit steam under pressure to the passage 22. The outlet end of the passage 22 opens through the upper wall of the collecting chamber 13 at the rear end of the iron, and thus delivers the entering steam to the chamber 13. p

In order to transmit the heat from the partition 11 to the bottom 25 of the iron body, there is a pluralit of vertically arranged posts 26 mtegra ly connecting the partition 11 with the bottom 25, and these posts also serve to transmit heat to the steam traversing the chamber 13. As here shown, there are eleven of these posts, three arranged in transverse alinement adjacent to the rear wall 17, three spaced therefrom on the opposite side of the discharge outlet of the passage 22, and five arranged in converging relation at the toe end of the iron. For the purpose of dischar mg steam from the collecting chamber 13, t ere is provided a plurality of orts 27, preferably located just in front 0 the respective posts 26 and on the toe end of the iron with respect to the outlet of the passage 22, though in the preferred arrangement there are none of these ports 27 at the end of the iron body to the rear of said outlet of passage 22, for a roe for the collection of any water of con- I dcnsation in the bottomof the chamber without any of the water being able to escape through the ports 27. 0f course,should there be an undue amount of water of condensation remaining after a use of the iron, it might rise to a level where some of it would overflow through the outlet 27, but in such a case it would do no damage, as the iron would then be out of use, and when the burner was again lighted and steam admitted to the iron, this water of condensation could be readily blown out before the iron was placed upon the goods. In normal operation, however, the distance of the inlets of the ports 2-7 is sufficient under all normal conditions to prevent any way from draining or discharging through the ports. In the foregoing, reference was made to the absence of ports at the rear portion of the iron body, and it has been found desirable to omit them adjacent the discharge of the passage 22, because thereby the steam enters an end of the chamber 13 which is closed in all directions except toward the front of the iron, and therefore. as this portion is directly subject to the flame, the entering steam will be additionally heated and passed forwardly between the posts 26 and discharged through the ports 27 in almost a superheated condition; in any event, it leaves the iron without any entrained water. If any of the entering steam is not sufiiciently heated during its travel through the passage 22 and still contains some water, this small amount of water will collect on the floor of the chamber 13 at the rear of the iron and almost immediately be transformed into steam, so that the construction provides an effective means for delivering dry steam to a point of use when the iron is in operation. It will be understood that in the construction of the ports 27 and also of the passage 22 that the respective diameters are so proportioned as to prevent too tree a flow of steam through the iron, and preferably the ports 27 are of somewhat smaller bore than the passage 22 for this purpose.

It will now be apparent that a complete unitary steam gas iron construction has been provided wherein the iron is subjected to an effective and proper heating by means of a gas flame, while the entering steam is subjected to heat from the burner in such a manner as to remove excess moisture as well as to raise its temperature, and a discharge means is provided whereby steam in the proper condition is delivered to the goods in process of pressing. Furthermore, by the provision of a steam collecting chamber constructed in accordance with the present invention, it is possible to insure the complete separation of water from the steam, and by an arrangement of spaced heated posts or the like, cause any collected water to be readily converted into steam. Furthermore, by providing ports for the passage of steam through the bottom of the iron which have inlets raised above the floor of the collecting chamber all steam in that chamber has free means of escape, while any water is prevented from draining or being carried out with the steam.

Having thus described my invention, I claim:

In a sad iron, a hollow body, a substantially horizontally disposed partition extending transversely of said body to form an upper heating chamber and a lower collecting chamber, a rib integral with said body and extending longitudinally thereof and having a passage for steam communicating with the exterior of said body and with said collecting chamber at the rear end thereof, heat conveying means located at spaced intervals between said partition and the bottom of said iron, a plurality of bosses upstanding from the bottom of said iron within said collecting chamber, and a plurality of ports respectively passing through said bosses and the bottom of said iron.

Signed at Philadelphia, in the county of Philadelphia, State of Pennsylvania, this th day of August, 1923.

HARRY A. KOENIG. 

